Exploring CP Violation with $B_c$ Decays

Details Exploring CP Violation with $B_c$ Decays Exploring CP Violation with $B_c$ Decays

2000-04-03

arxiv.org/abs/hep-ph/0004010v2

Phys.Rev. D62 (2000) 057503

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, LaTeX, 3 figures, reference added

Scientific paper

10.1103/PhysRevD.62.057503

We point out that the pure ``tree'' decays $B_c^\pm\to D^\pm_s D$ are particularly well suited to extract the CKM angle $\gamma$ through amplitude relations. In contrast to conceptually similar strategies using $B^\pm\to K^\pm D$ or $B_d\to K^{\ast0} D$ decays, the advantage of the $B_c$ approach is that the corresponding triangles have three sides of comparable length and do not involve small amplitudes. Decays of the type $B_c^\pm\to D^\pm D$ -- the $U$-spin counterparts of $B_c^\pm\to D^\pm_s D$ -- can be added to the analysis, as well as channels, where the $D^\pm_s$- and $D^\pm$-mesons are replaced by higher resonances.

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